All neutrinos are left handed
a. True
b. False
Indicate whether the statement is true or false
True
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A boat travels upstream and after one hour has gone 10 km. The boat next travels downstream and after one hour has gone 16 km. If the boat's speed relative to the water is constant, what is the speed of the current in the river?
a. 1 km/h c. 3 km/h b. 2 km/h d. 4 km/h
The two photons produced in an electron-positron annihilation have equal but oppositely-directed momenta to match the zero momentum of the electron-positron pair. Which of the following conservation laws are obeyed in the pictured interaction?
a. Conservation of energy. b. Conservation of momentum. c. Conservation of charge. d. Both a. and b. but not c. e. All of a., b. and c.
A tuning fork is set into vibration with a frequency of 512 Hz. How many oscillations does it undergo in 1 minute?
A) 30700 B) 8.53 C) 26.8 D) 1610 E) 512
A compressible fluid is flowing through a pipe with a constriction. The diameter of the narrow section is 1/2 the diameter of the wide section. The density of the fluid in the narrow section is 3/4 the density of the fluid in the wide section. If the velocity of the compressible fluid is 3.600 m/s in the narrow section, then what is the velocity of the fluid in the wide section?
A. 0.675 m/s B. 0.805 m/s C. 0.250 m/s D. 0.333 m/s E. 0.500 m/s